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Organs of Urinary System:
kidneys
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Two bean-shaped organs located on each side of the vertebral column on the posterior wall of the abdominal cavity behind the parietal peritoneum. Their function is to remove waste products from the blood and to aid in maintaining water and electrolyte balances. |
Organs of Urinary System:
nephron
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Urine-producing microscopic structure. Approximately 1 million nephrons are located in each kidney. |
Organs of Urinary System:
glomerulus (pl. glomeruli)
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Cluster of capillaries at the entrance of the nephron. The process of filtering the blood, thereby forming urine, begins here. |
Organs of Urinary System:
renal pelvis
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Funnel-shaped reservoir that collects the urine and passes it to the ureter. |
Organs of Urinary System:
hilum
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Indentation on the medial side of the kidney where the ureter leaves the kidney.
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Organs of Urinary System:
ureters
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Two slender tubes, approximately 10 to 13 inches (26 to 33 cm) long that receive the urine from the kidneys and carry it to the posterior portion of the bladder. |
Organs of Urinary System:
urinary bladder
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Muscular, hollow organ that temporarily holds the urine. As it fills, the thick, muscular wall becomes thinner, and the organ increases in size. |
Organs of Urinary System:
urethra
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Lowest part of the urinary tract, through which the urine passes from the urinary bladder to the outside of the body. This narrow tube varies in length by sex. It is 1.5 inches (3.8 cm) long in the female and 8 inches (20 cm) in the male, in whom it is also a part of the reproductive system. It carries seminal fluid (semen) at the time of ejaculation. |
Organs of Urinary System:
urinary meatus
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Opening through which the urine passes to the outside
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Combining Form:
cyst/o, vesic/o
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Bladder, sac
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Combining Form:
glomerul/o
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Glomerulus
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Combining Form:
meat/o
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Meatus (opening)
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Combining Form:
nephr/o, ren/o
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Kidney
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Combining Form:
pyel/o
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Renal pelvis
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Combining Form:
ureter/o
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Ureter
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